January 1, 2017

What’s 475 About – Reflections for a New Year

When people ask what do we do, one abbreviated response is: “We sell tape.” Though “we sell tape” describes a simple act, it is one with a potentially huge impact. We sell air-sealing tape as a specialized and critical component in a complete building enclosure airtightness system, which is the foundation of a low-energy building. […]

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November 26, 2016 20150426_inq_re1deal26z-a

4 Hurdles to Hitting Passive House Performance & How to Overcome Them

Passive House performance is the future of building.  As with any trip there are obstacles.   Yet professionals new to Passive House can be disoriented and may not readily see them.   What’s going on? The Passive House Paradox On the one hand Passive House is simply a rediscovery of basic building science with a more rigorous arrangement […]

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November 10, 2016 apollo-13

Avoiding the Abyss: Climate Crisis, Apollo 13 & Passive House in the Age of Donald Trump

  As the New York Times, post-election, reminds us: if Trump abandons the commitments of COP21 made in Paris, other countries like India will likely become disincentivized to act. If this comes to pass it will be impossible to prevent runaway global warming, with human population collapse, massive species extinction and unimaginable levels of suffering. Climate tipping points […]

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November 4, 2016 Last reflection.

Project Spotlight – Prefab walls for a comfortable, cozy, and quiet Passive House in eastern British Columbia

Erik Olofsson of Erik Olofsson Construction has a vision of elegant and affordable design of the highest quality, reaching the Passive House standard for customers in his harsh Canadian climate.   Erik enlisted the help of Vincent Siu of Siu Architecture for the schematic design, and sought to deliver a highly predictable result with the pre-fab process – delivered […]

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November 1, 2016 cornell-tower

Notes From New York: Lessons From A Growing Market

Passive House is growing around the world.  Yet some regions seem to be moving farther, faster.  Why? 475’s own Ken Levenson had a chance to explore this question when asked to talk about what’s happening in the New York region as the keynote speaker at the recent Passive House Massachusetts Symposium in Boston.   What […]

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September 13, 2016 nyserda-logo

NYSERDA Supports Passive House

In support of New York State’s aggressive carbon reduction goals the New York State Energy Research and Development Authority’s new incentives are structured to support a “fabric first” approach and then push toward net zero buildings.  NYSERDA recognizes the power of Passive House in establishing very energy efficient, resilient, healthy and comfortable buildings as the basis of […]

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March 28, 2016 JLC-LOGO

JLC Reports on Success of Foam-Free Unvented Flat Roof Assembly

475 enables more robust assemblies that are less toxic. Such was the case with the Whitchurch home in northern Vermont – working with the owners and their dedicated Passive House team at Montpelier Construction. The walls were a variation on the I-Joist outrigger configuration with dense pack cellulose between DB+ membrane inboard and SOLITEX Mento Plus […]

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March 1, 2016 nesea-logo-new2

See You at BuildingEnergy Boston 2016

Next week is NESEA’s BuildingEnergy Boston Conference & Trade Show, March 9-10 at the Seaport World Trade Center. The annual event attracts over 3,500 practitioners, and focuses on sustainable energy practices in the built environment. Since the start of our company 475 has participated as a vendors and we love coming back each year to […]

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January 26, 2016 439-Bergen-Front-Facade-e1445713379954-199x300

Historic Masonry: Notes and Details (updated)

475 in many ways started with historic masonry retrofits, and with our HQ surrounded by Brownstone Brooklyn, we are helping a great many of these 100+ year old buildings get high-performance/Passive House retrofits for the 21st century.  Our deep interest in making these retrofits work, has led us to produce public interest articles, eBooks, details and extensive […]

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December 15, 2015 BT-Yonkers 12.10.15 - EDIT

Learning from PHIUS

What draws many of us to Passive House is its simplicity, its clarity, its predictability, and it’s drastic impact on comfort and energy efficiency.  But  achieving simplicity requires great repetition, practice and lots of training.  So last week attending the Passive House Institute US (PHIUS)’s Certified Builder training course in Yonkers, NY, was another good […]

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November 29, 2015 passivenyc

Passive NYC: Making the Pathway to 80 by 50

Passive NYC, A snapshot of low energy building opportunities, barriers, & resources, published by the the Building Energy Exchange, demonstrates that Passive House is a force to be reckoned with: in planning the future of our cities, at every level of policy making, and in building design. And 475, with our HQ in Brooklyn, is proud to […]

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November 16, 2015 Highest quality certification from the Passive House Institute

Lamilux Skylights at ABX 2015, Boston, Nov. 17-19

The latest in skylight performance from Lamilux will be on display at ABX 2015 in Boston from November 17 to 19. Please stop by Booth 877  to see samples and speak with US reps Oliver Klein and Floris Keverling Buisman from 475 High Performance Building Supply. Roof daylighting has many benefits, but can also be risky. […]

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August 27, 2015 obama

Obama Endorses Passive House Initiative: This is BIG

In stunning news from Washington DC this week, the White House announced as part of a comprehensive plan to bring renewable energy and energy efficiency to households across the U.S. , that New York State Homes and Community Renewal (HCR) in collaboration with NYSERDA, is launching a Passive House track:  The White House press release makes […]

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August 26, 2015 R951

A Must Read Book – Net Zero Buildings: Passive House + Renewables

475 is always looking to enable more efficient, more robust high-performance buildings: Passive Houses and the spectrum of greater efficiency leading to Passive House.  The mantra is reduce the energy demand, reduce the need to produce power, increase the resiliency.   But let’s face it, “Net Zero Buildings” as a term has incredible emotional pull.  Never mind […]

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August 24, 2015 PR-60 lastshot2

Lamilux PR-60: The Glass Roof You’ve Been Waiting For

The benefits of roof daylighting are numerous. Daylight systems increase productivity, stores sell more products, and students perform better. Roof daylighting can be an aesthetically powerful design element. They can provide natural ventilation and can even be energy positive when done correctly. They can extend the benefits of daylighting deep to the interior of a building. Persuasive […]

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August 10, 2015 ACRE_image

475 Joins NYC ACRE – NYC’s Leading Clean Energy Incubator

475 High Performance Building Supply is proud to announce we have been accepted as a “virtual tenant” of NYC ACRE, the premier incubator in New York City for business startups focused on energy transformation. Founded by Mayor Bloomberg in PlaNYC 2030 and funded in part by NYSERDA, NYC ACRE forms a crucible for innovation and economic […]

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July 30, 2015 ServiceCavity

The Service Cavity – Making Airtight Construction Easy

We know that the importance of airtightness is second only to keeping the rain out.  This is because airtightness greatly effects indoor air quality, thermal comfort, and energy efficiency – while protecting the enclosure from moisture damage (see here).  Given these pretty convincing reasons, what should our airtightness target be, and how does a service cavity help […]

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June 22, 2015 deBlasioCornell

Cornell’s New Campus Breaks Ground and Passive House is the Main Attraction

  This spring we said “Passive House Poised To Go Big.” Now we’re saying “Passive House Is Going Big.” On June 16th, Cornell Tech held a groundbreaking ceremony on Roosevelt Island. While the event took place to announce Bloomberg Philanthropies $100Mil gift to the new campus, the “BOOM!” heard round the low-energy/high-performance world was news that […]

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May 7, 2015 ReportFromGermany2

475 Goes to Germany

One of the great treats of being a partner at 475 High Performance Building Supply is the annual trip to the International Passive House conference – this year in Leipzig, Germany,  April 17th and 18th. We have the opportunity to see customers from across North America, visit our leading product suppliers and stay up-to-date on […]

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April 2, 2015 JaneSandersInterior

Why New Yorkers Love Passive House

This video speaks for itself. We featured this project in a previous video – 475 On-Site: Historic Brownstone Passive House Retrofit in Brooklyn, NY. It is in process to receive EnerPHit certification with architect, Jane Sanders, and builder, Build With Prospect. So how does this work? Airsealing and insulation. These two measures increase comfort, while drastically reducing energy and outside […]

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April 1, 2015 PHIcertNYtimes

New York Times: Passive House Poised To Go Big

If you make it in New York City, you can make it anywhere. Passive House builders in NYC got recognition for making it happen in last weekend’s New York Times Real Estate section. As New York Passive House trumpeted, it’s been launched above the fold. There’s so much to say about this most recent take on the […]

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December 30, 2014 proclimaCANADA

Press Release: 475 Granted Exclusive Pro Clima Distribution in Canada

FOR IMMEDIATE RELEASE Building Airtightness Specialists Offer New Solutions to Canadian Builders German Airtight Building Leader Grants Exclusive Canadian Distribution to 475 High Performance Building Supply New York City – December 30, 2014 475 High Performance Building Supply (475), a building materials company based in New York City, is offering a new solution for building […]

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December 9, 2014 proclimaCANADA

Oh, Canada!

With the 2014 conference and trade show season drawing to a close, the team at 475 caught a glimpse of new horizons while fraternizing with our neighbors to the north last week at the 2014 Construct International trade show in Toronto, Ontario. Loaded with models, samples, and enthusiasm to show off our Pro Clima products […]

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November 5, 2014 Lothar in Vancouver

West Coast Pro Clima Tour Recap

Pro Clima founder, building scientist, and INTELLO inventor Lothar Moll along with Jens Lüder Herms, head of Pro Clima R&D, toured the west coast in mid-October with me (Floris) to present information, see common construction practices, and analyze how to improve the quality of construction. This trip also coincided with 475 opening of our west coast warehouse, which will […]

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November 5, 2014 HouseTour2

International Passive House Days: See the future with 475 this weekend

475 is happy to be an active participant in this year’s International Passive House Days event, happening Friday-Sunday, November 7-9. From our office happy hour this Friday afternoon in our Brooklyn headquarters (that you are all invited to – RSVP here), to projects we’ve been actively involved in across the country, we hope you can see us […]

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October 3, 2014 OneCityBuiltToLast

New York City Points to Passive House

In statements made to coincide with the recent UN Climate Summit and the highly attended People’s Climate March, New York City Mayor Bill de Blasio announced the release of the city’s new building-focused climate initiative. In a document entitled One City: Built to Last, the New York City Office of Long-Term Planning and Sustainability lays […]

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September 18, 2014 headline-whitchurch

Middlesex VT: Foam-free, WUFI-verified, and OSB-free high performance

The town of Middlesex, Vermont, located just north of Montpelier, has put itself on the high performance building map. Leading the way is the new “Whitchurch Passive House Cottage” – not only in terms of energy efficiency (Passive House certification is in the works), but also as a unique and adventurous example of “form follows function”. The project […]

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August 27, 2014 tigerontightrope

5 Things Greenpeace Can Teach Passive House Advocates

The publication Business Insider has a fantastic “must read” article, The Inside Story Of How Greenpeace Built A Corporate Spanking Machine To Turn The Fortune 500 Into Climate Heroes by Aaron Gell. Greenpeace has not given up their flair for the dramatic either – quite the contrary – the article opens with a made-for-the-movies jaw-dropping stunt, ostensibly to save tigers, at Proctor & […]

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August 27, 2014 GutexIntroVideo

Introduction to GUTEX

475 Technical Director Floris Keverling Buisman gives us a video introduction to the GUTEX wood fiber insulation boards. This brief video describes some of the important points of GUTEX including its ability to shed water, acting as roof underlayment and insulation board in one. This tongue-in-groove, reclaimed wood material is widely used for high performance […]

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